Finding the Fourth Proportional to 3,420,541.98, 4,720,348.35 and 1,871,803.95
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Solution
The fourth proportional to 3,420,541.98, 4,720,348.35 and 1,871,803.95 is: 2,583,089.68
Step by Step Solution
- Step 1: Write the proportion equation
3,420,541.98 : 4,720,348.35 = 1,871,803.95 : x - Step 2: Convert to fraction form
3,420,541.98/4,720,348.35 = 1,871,803.95/x - Step 3: Cross multiply
3,420,541.98x = 4,720,348.35 × 1,871,803.95 - Step 4: Simplify right side
3,420,541.98x = 8,835,566,686,905.98 - Step 5: Solve for x
x = 8,835,566,686,905.98/3,420,541.98 - Step 6: Final answer
x = 2,583,089.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.